Some importnt sample commands for ccna 4: ACCESSING THE WAN

Frame relay configuration

R1(config)#int s3/0

R1(config-if)#en

R1(config-if)#encapsulation fr

R1(config-if)#encapsulation frame-relay

R1(config-if)#

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up

R1(config-if)#no sh

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to down

R1(config-if)#

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up

R1(config-if)#ex

R1(config)#int s3/0.102 po

R1(config)#int s3/0.102 point-to-point

%LINK-5-CHANGED: Interface Serial3/0.102, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0.102, changed state to up

R1(config-subif)#ip ad

R1(config-subif)#ip address 192.168.5.1 255.255.255.0

R1(config-subif)#fr

R1(config-subif)#frame-relay in

R1(config-subif)#frame-relay interface-dlci 102

R1(config-subif)#no sh

R1(config-sub

Router dhcp configuration

R3(config)#ip dh

R3(config)#ip dhcp ex

R3(config)#ip dhcp excluded-address 192.168.1.2

R3(config)#ip dh

R3(config)#ip dhcp po

R3(config)#ip dhcp pool LAN1

R3(dhcp-config)#net

R3(dhcp-config)#network 192.168.1.0 255.255.255.0

R3(dhcp-config)#de

R3(dhcp-config)#default-router 192.168.1.1

R3(dhcp-config)#

NAT=Network Address Translation

er configuration commands, one per line.  End with CNTL/Z.

R0(config)#ip nat in

R0(config)#ip nat inside so

R0(config)#ip nat inside source st

R0(config)#ip nat inside source static 192.168.2.1 209.165.200.11

R0(config)#int ran

R0(config)#int fa0/0

R0(config-if)#ip na

R0(config-if)#ip nat in

R0(config-if)#ip nat inside

R0(config-if)#int fa1/0

R0(config-if)#ip nat ins

R0(config-if)#ip nat inside

R0(config-if)#int s2/0

R0(config-if)#ip nat ou

R0(config-if)#ip nat outside

PAP

R0(config)#username n2 pas cisco

R0(config)#int s2/0

R0(config-if)#en

R0(config-if)#encapsulation ppp

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to down

R0(config-if)#ppp au

R0(config-if)#ppp authentication pa

R0(config-if)#ppp authentication pap

R0(config-if)#ppp pap se

R0(config-if)#ppp pap sent-username n1 pas cisco

R0(config-if)#

R1>en

R1#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

R1(config)#int s2/0

R1(config-if)#ex

R1(config)#us n1 pas cisco

R1(config)#int s2/0

R1(config-if)#en ppp

R1(config-if)#pp au pa

R1(config-if)#pp pa se n2 pas cisco

R1(config-if)#

Dynamic NAT:

R1(config) # ip nat pool mypool 209.165.202.131 209.165.202.141 netmask         255.255.255.248

R1(config)#ip access-list extended aclan

             # permit ip 192.168.10.0 0.0.0.7 any

             # ip nat inside source list aclan pool mypool overload


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